diff --git a/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md b/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md
index d0446a8..715fe80 100644
--- a/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md
+++ b/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md
@@ -114,3 +114,7 @@ CreatePerObjectProjectedShadow() => ProjectedPreShadowInfo->SetupPerObjectProjec
 - GetBestShadowTransform()
 
 ### 思路一
+ENGINE_API virtual void PreEditChange(FProperty* PropertyAboutToChange) override;  
+ENGINE_API virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;  
+ENGINE_API virtual bool CanEditChange(const FProperty* InProperty) const override;  
+ENGINE_API virtual bool Modify(bool bAlwaysMarkDirty = true) override;
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